But you, brethren, are not in darkness, that that day should overtake you as a thief.
All Commentaries on 1 Thessalonians 5:4 Go To 1 Thessalonians 5
Augustine of Hippo
AD 430
Therefore, not to know the times is something different from decay of morals and love of vice. For, when the apostle Paul said, “Don’t allow your thinking to be shaken nor be frightened, neither by word nor by epistle as sent from us, as if the day of the Lord were at hand,” he obviously did not want them to believe those who thought the coming of the Lord was already at hand, but neither did he want them to be like the wicked servant and say, “My Lord is long in coming,” and deliver themselves over to destruction by pride and riotous behavior. Thus, his desire that they should not listen to false rumors about the imminent approach of the last day was consistent with his wish that they should await the coming of their Lord fully prepared, packed for travel and with lamps burning. He said to them, “But you, brothers, are not in darkness that that day should overtake you as a thief, for all you are the children of light and children of the day; we are not of the night nor of darkness.” .